<!doctype html>
<title>Floating elements</title>
<style>

#stage
{
  display: block;
	width: 400px;
	height: 300px;
	border: 1px dashed black;
}

img
{
	display: block;
}

</style>

<div id="stage">
  <img src="cat.png">
  <img src="tiger.png">
  <img src="hedgehog.png">
</div>